Summary:

In step 1 you have learned what a fraction is and especially the meaning of the fraction bar:"divided by".

In step 2 you have learned that by calculating this division you get a number which corresponds to the value of the fraction.
So you can say that a fraction is a number. The set of all fractions forms the set of Rational Numbers, the set of Natural Numbers is contained in it.

Conversely, every number can also be represented as a fraction - and not only that: it can be represented as a fraction in an infinite number of ways!

In step 3 you created a toolbox to make this and the next chapter very simple! You learned to expand and to simplify fractions, as well as some other tools: prime factorization,
the greatest common divisor (GCD) and the least common multiple (LCM).

Finally you got to know the tool common denominator. Especially this you will need in this chapter!

Page 1: Addition Fraction plus Whole Number

When adding a whole number with a fraction, you can write the result directly as a mixed number by simply omitting the plus sign.